VHT Paint

So I've been trying to figure out the best path forward for headers. I am probably going to go with raw metal doug's headers in my 71 dart swinger with a 318. With raw metal will I still need to sand on the headers or just lay down the primer? Also right now the engine is out of the car, but when I put it back in the car I will need to break in the new cam. Will I need to break in the cam with the stock exhaust manifolds first? I doubt I would be able to cure the headers in the oven in the house lol. Also this car will be a daily driver but not that much driving each day, I live real close to work and I live in southern Idaho which is pretty dry but does get snow in the winter. Am I making the right choice here? Or should I just suck it up and by the coated headers from factory? Thanks for all the help! Im ready to get the car back on the road and back to driving.